$100B Gates 1999 https://en.wikipedia.org/wiki/List_of_centibillionaires https://en.wikipedia.org/wiki/List_of_centibillionaires $200B Bezos 2020 https://www.c

$100B Gates 1999 https://en.wikipedia.org/wiki/List_of_centibillionaires https://en.wikipedia.org/wiki/List_of_centibillionaires $200B Bezos 2020 https://www.cbsnews.com/news/jeff-bezos-net-worth-200-billion-first/ https://www.cbsnews.com/news/jeff-bezos-net-worth-200-billio... $300B Musk 2021 https://www.cbsnews.com/news/elon-musk-300-billion-net-worth/ https://www.cbsnews.com/news/elon-musk-300-billion-net-worth... $400B Musk 2024 https://www.cbsnews.com/news/elon-musk-net-worth-400-billion-bloomberg/ https://www.cbsnews.com/news/elon-musk-net-worth-400-billion... $500B Musk 2025 https://news.ycombinator.com/item?id=45447250 https://news.ycombinator.com/item?id=45447250 https://news.ycombinator.com/item?id=45449800 https://news.ycombinator.com/item?id=45449800